12 Injection Port
12.2 Split/Splitless Injection System
144
GC-2014
12.2.9.2 Parameter list
Q High Pressure Injection
HIGH PRESS INJECTION MODE
Select One of the following three modes.
Off : Disables high pressure injection.
On : Sets the column inlet pressure to high value immediately.
Auto : Immediately sets the column inlet pressure to high pressure. When analysis is
finished and the GC returns to the ready status, the column inlet pressure
automatically increases.
HIGH PRESS INJECTION PRESS
Range: 0.0−970.0 kPa (Refer to Fig. 12.2.5.), Default: 100.0 kPa
Set the column inlet pressure for high pressure injection.
HIGH PRESS INJECTION TIME
Range: 0.00−9999.99 min, Default: 1.00 min
Set the period of time after analysis starts until the column inlet pressure returns to the
original value.
Usually, set this equal to the sampling time.
Q Splitter Fix
SPLITTER FIX MODE
Selection: Off/On/Auto, Default: Off
Select one of the following three modes.
Off : Disables splitter fix mode.
On : Fixes the split flow line immediately.
Auto : Automatically enters splitter fix mode after analysis finishes and the system returns to
ready status.
FIX TIME
Range: 0.0−9999.99 min, Default: 0.10 min
Set the period of time to be in splitter fix mode.
When “SPLITTER FIX MODE” is set to “On”, indicate the period of time after “SPLITTER FIX
MODE” is set to “On” to exit splitter fix mode.
When “SPLITTER FIX MODE” is set to “Auto”, set the period of time after the analysis starts
to exit splitter fix mode.
Using splitter fix mode for long periods of time may interfere with constant pressure, negatively affect-
ing reproducibility of results.
HIGH PRESS INJECTION MODE = On HIGH PRESS INJECTION MODE = Auto
NOTE
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